Add a command line flag to specify the scope to use for the permission request API.

chrome/common/chrome_switches.cc

Index: chrome/common/chrome_switches.cc
diff --git a/chrome/common/chrome_switches.cc b/chrome/common/chrome_switches.cc
index 43012bad9273763283680672160a1657be2adf65..c6ddc41b0ce49ebe8c559e92330a3dd43cf2856a 100644
--- a/chrome/common/chrome_switches.cc
+++ b/chrome/common/chrome_switches.cc
@@ -904,8 +904,13 @@ const char kPerformanceMonitorGathering[]   = "performance-monitor-gathering";
 
 // Development flag for permission request API. This flag is needed until
 // the API is finalized.
-// TODO(akuegel): Remove when this flag is not needed anymore.
-const char kPermissionRequestApiUrl[] = "permission-request-api-url";
+// TODO(bauerb): Remove when this flag is not needed anymore.
+const char kPermissionRequestApiScope[]     = "permission-request-api-scope";
+
+// Development flag for permission request API. This flag is needed until
+// the API is finalized.
+// TODO(bauerb): Remove when this flag is not needed anymore.
+const char kPermissionRequestApiUrl[]       = "permission-request-api-url";
 
 // Read previously recorded data from the cache. Only cached data is read.
 // See kRecordMode.